CN102226751A - Friction tester for dense granules - Google Patents
Friction tester for dense granules Download PDFInfo
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- CN102226751A CN102226751A CN 201110084050 CN201110084050A CN102226751A CN 102226751 A CN102226751 A CN 102226751A CN 201110084050 CN201110084050 CN 201110084050 CN 201110084050 A CN201110084050 A CN 201110084050A CN 102226751 A CN102226751 A CN 102226751A
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- horizontal survey
- torque sensor
- guide rail
- translation stage
- rail translation
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Abstract
The invention discloses a friction tester for dense granules. The friction tester is characterized in that a guide rail translation stage and a granule accommodating groove are both arranged on a base, and the guide rail translation stage can do linear reciprocating motion on the base; the base is supported on the guide rail translation stage, and can move with the guide rail translation stage; the front end of a horizontal measuring arm is fixedly connected with a vertical measuring arm; a torque sensor is fixedly arranged on the base, and the top of the torque sensor is connected with the middle part of the horizontal measuring arm by a hinge-joint structure; a pull-press force transducer is vertically arranged at the tail end of the horizontal measuring arm, and the bottom end of the pull-press force transducer abuts against the surface of the base; and a test panel is connected with the bottom end of the vertical measuring arm, arranged in the granule accommodating groove, and can be in contact with granules in the groove. The friction tester disclosed by the invention is used for measuring the frictional characteristics of granular material and a surface.
Description
Technical field
The present invention relates to a kind of friction testing arrangement, a kind of friction testing instrument of more specifically saying so at the compacted grains body.
Background technology
Current, the friction testing instrument all is at solid material, under a contact, line contact or face contact conditions, relevant tribology parameter is measured.When setting up for 25 anniversaries in tribology branch of Chinese Mechanical Engineering Society, Wen Shizhu academician sums up " current situation and development of China's tribology research " (mechanical engineering journal, 2004,40 (11): point out in the time of 1-6.): the particle tribology research is applied to the moulding process of powder metallurgy, pottery etc., and particulate matter (as grain, coal dust etc.) is piled up and conveying, soil erosion, seashore and dam construction etc., from the tribology angle, this research still belongs to blank.And study at the tribological property of particulate matter, also there are not standardized experimental apparatus and method at present in the world.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point that a kind of compacted grains body friction testing instrument is provided, with the measurement of its realization to the particulate matter tribological property.
The present invention adopts following technical scheme for the technical solution problem:
The characteristics of compacted grains body friction testing instrument of the present invention are that its structure setting includes:
An one guide rail translation stage and a particle storage tank are co-located on the base, but guide rail translation stage linear reciprocation on described base moves;
One pedestal is fixed on the guide rail translation stage, and can move with the guide rail translation stage;
One horizontal survey arm is fixedlyed connected by a right-angle connector with vertical gage beam with its front end;
One torque sensor that is used for the tangential resistance measurement is fixedly installed on pedestal, and the top of described torque sensor is connected with articulated structure with horizontal survey arm middle part, forms the support of torque sensor to described horizontal survey arm;
One is used for mensuration is the end that vertically is arranged on described horizontal survey arm to the pull pressure sensor of bearing capacity, and the surface with described pedestal is supported in the bottom of described pull pressure sensor;
One test plate (panel) is connected the bottom of vertical gage beam, and described test plate (panel) places in the particle storage tank, test plate (panel) can contact with groove endoparticle body.
The characteristics of compacted grains body friction testing instrument of the present invention also are:
The articulated structure that the middle part of the top of described torque sensor and horizontal survey arm is set is: connected and composed by the rotating shaft that runs through therebetween by torque sensor hinged block and horizontal survey arm middle part hinged block; Between described horizontal survey arm middle part hinged block and torque sensor hinged block, be respectively arranged with centripetal force bearing and plain thrust bearing.
Described test plate (panel) is set and vertically is the articulated structure of lockable angle between the gage beam.
Bottom in described pull pressure sensor is provided with roller by a fixed support, contacts with roller between pull pressure sensor and the pedestal.
Compared with the prior art, beneficial effect of the present invention is embodied in:
The present invention drives test plate (panel) with the guide rail translation stage by horizontal survey arm and vertical gage beam and moves in the particle storage tank, make test plate (panel) and granule form friction, record test plate (panel) suffered tangential resistance and support normal power in motion process respectively by being arranged on pull pressure sensor on the relevant position and torque sensor; As transducing signal, transducing signal is further by follow-up filtering, amplification, and signal analysis and processing can obtain the frictional behaviour of relevant granule with this.
Description of drawings
Fig. 1 is master's TV structure synoptic diagram of the present invention;
Fig. 2 is a plan structure synoptic diagram of the present invention;
Fig. 3 is a movable stand structural representation of the present invention;
Fig. 4 be among Fig. 3 C to view.
Fig. 5 is a B-B view among Fig. 3;
Fig. 6 is an A-A view among Fig. 3;
Fig. 7 is a partial enlarged drawing among Fig. 6.
Number in the figure: 1 base; 2 guide rail translation stages; 3 pedestals; 4 pull pressure sensor; 5 horizontal survey arms; 6 torque sensors; 7 vertical gage beams; 8 test plate (panel)s; 9 particle storage tanks; 10 granules; 11 torque sensor hinged blocks; 12 horizontal survey arms middle part hinged block; 13 horizontal survey arm flange seats; 14 rollers; 15 supports; Web member under 16 pull pressure sensor; 17 pull pressure sensor web members; The terminal flange seat of 18 horizontal survey arms; 20 right-angle connectors; The terminal flange seat of 21 vertical gage beams; 22 vertical gage beam hinged blocks; 23 measuring junction hinged blocks.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the structure setting of the tester in the present embodiment includes:
An one guide rail translation stage 2 and a particle storage tank 9 are co-located on the base 1, but guide rail translation stage 2 linear reciprocation on base 1 moves; It is to be transmission component with motor-driven screw mechanism that the linear reciprocation that guide rail translation stage 2 is set moves.
One pedestal 3 is bearing on the guide rail translation stage 2, and can move with guide rail translation stage 2;
One horizontal survey arm 5 is fixedlyed connected the formation movable stand with its front end and vertical gage beam 7 by a right-angle connector 20;
One torque sensor 6 that is used for the tangential resistance measurement is fixedly installed on pedestal 3, and the middle part of the top of torque sensor 6 and horizontal survey arm 5 is hinged, forms the support of 6 pairs of horizontal survey arms 6 of torque sensor;
One is used for mensuration is the end that vertically is arranged on horizontal survey arm 5 to the pull pressure sensor 4 of bearing capacity, and the surface with pedestal 3 is supported in the bottom of pull pressure sensor 4;
One place in the particle storage tank 9, can be connected the bottom of vertical gage beam 7 with the granule 10 contacted test plate (panel)s 8 that particle storage tank 9 holds.
In concrete the enforcement, the corresponding structure setting also includes:
As shown in Figure 3 and Figure 4, but test plate (panel) 8 linkage by a manual locking angle link to each other with vertical gage beam, the linkage shown in the figure is made of the terminal flange seat 21 of vertical gage beam, vertical gage beam hinged block 22 and measuring junction hinged block 23; In this linkage a bevel protractor can be set, so that set the angle of attack of test plate (panel) 8 and lock, it is constant that the angle of attack of this setting should keep in the motion process of test plate (panel).
As Fig. 3 and shown in Figure 5, the middle part articulated structure of the top of torque sensor 6 and horizontal survey arm 5 is to be connected and composed by the rotating shaft that runs through therebetween by torque sensor hinged block 11 and horizontal survey arm middle part hinged block 12, and horizontal survey arm middle part hinged block 12 is fixedlyed connected with horizontal survey arm 5 by horizontal survey arm flange seat 13; Between horizontal survey arm middle part hinged block 12 and torque sensor hinged block 11, be respectively arranged with centripetal force bearing and plain thrust bearing.Concrete is to have counterbore in the both sides of torque sensor hinged block 11 as Fig. 5 and shown in Figure 7, and one first centripetal force bearing 11a respectively is installed in the counterbore of both sides; Inboard at horizontal survey arm middle part hinged block 12 also is provided with counterbore, and the second centripetal force bearing 12a is installed in the counterbore; Between the first centripetal force bearing and the second centripetal force bearing, plain thrust bearing is set, in order to adjust the gap between horizontal survey arm middle part hinged block 12 and the torque sensor hinged block 11, can be between the first centripetal force bearing and plain thrust bearing, and between the second centripetal force bearing and plain thrust bearing, pad is set respectively, so that the horizontal survey arm can rotate around the axis in perpendicular, the displacement in surface level then directly acts on the torque sensor.
As Fig. 3 and shown in Figure 6, end at horizontal survey arm 5 is provided with the terminal flange seat 18 of horizontal survey arm, the bottom of the terminal flange seat 18 of horizontal survey arm is by pull pressure sensor web member 17 fixedly connected pull pressure sensor 4, bottom in pull pressure sensor 4 is provided with a roller 14 by support 15, support 15 is fixedlyed connected with web member 16 under the pull pressure sensor, making between pull pressure sensor 4 and the guide rail translation stage 2 is to contact with roller 14, roller 14 can roll on guide rail translation stage 2, when measuring the horizontal direction resistance, small strain for the generation of torque sensor, the horizontal survey arm turns over an angle, roller rolls thereupon, makes pull pressure sensor can not influence the measurement of torque sensor.Simultaneously, during to bearing capacity, the hinge arrangement at horizontal survey arm middle part also can not disturb the strain of pull pressure sensor at mensuration.But the present invention can be used for the different test plate (panel)s of quantitative examination when moving in the variable grain body with the different angles of attack or speed, the Changing Pattern of tangential resistance and normal direction bearing capacity.
In the test, tested granule evenly is sprinkled into the particle storage tank, adjust and lock the angle of attack of test plate (panel), the controlled variable that motor is set makes kinematic parameters such as its displacement with setting, movement velocity and acceleration, drive test plate (panel) along with vertical gage beam moves in the particle storage tank by the kinematic parameter of setting by motor by screw mechanism, signal pickup assembly by relative set carries out signals collecting, and handles the test parameter that can obtain needed frictional behaviour about tested granule by further signal data.
Claims (4)
1. compacted grains body friction testing instrument is characterized in that the structure setting of described tester includes:
An one guide rail translation stage (2) and a particle storage tank (9) are co-located on the base (1), guide rail translation stage (2) at described base (1) but go up linear reciprocation and move;
One pedestal (3) is fixed on the guide rail translation stage (2), and can move with guide rail translation stage (2);
One horizontal survey arm (5) is fixedlyed connected by a right-angle connector (20) with vertical gage beam (7) with its front end;
One torque sensor (6) that is used for the tangential resistance measurement is fixedly installed on pedestal (3), the top of described torque sensor (6) is connected with articulated structure with the middle part of horizontal survey arm (5), forms the support of torque sensor (6) to described horizontal survey arm (5);
One is used for mensuration is the end that vertically is arranged on described horizontal survey arm (5) to the pull pressure sensor (4) of bearing capacity, and the surface with described pedestal (3) is supported in the bottom of described pull pressure sensor (4);
One test plate (panel) (8) is connected the bottom of vertical gage beam (7), and described test plate (panel) (8) places in the particle storage tank (9), test plate (panel) (8) can contact with groove endoparticle body (10).
2. compacted grains body friction testing instrument according to claim 1, the articulated structure that it is characterized in that being provided with the middle part of the top of described torque sensor (6) and horizontal survey arm (5) is: connected and composed by the rotating shaft that runs through therebetween by torque sensor hinged block (11) and horizontal survey arm middle part hinged block (12); Between described horizontal survey arm middle part hinged block (12) and torque sensor hinged block (11), be respectively arranged with centripetal force bearing and plain thrust bearing.
3. compacted grains body friction testing instrument according to claim 1 is characterized in that being provided with described test plate (panel) (8) and vertically is the articulated structure of lockable angle between the gage beam (7).
4. compacted grains body friction testing instrument according to claim 1, it is characterized in that by a fixed support (15) roller (14) being set, contact with roller (14) between pull pressure sensor (4) and the pedestal (3) in the bottom of described pull pressure sensor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100840509A CN102226751B (en) | 2011-04-02 | 2011-04-02 | Friction tester for dense granules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100840509A CN102226751B (en) | 2011-04-02 | 2011-04-02 | Friction tester for dense granules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102226751A true CN102226751A (en) | 2011-10-26 |
| CN102226751B CN102226751B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100840509A Expired - Fee Related CN102226751B (en) | 2011-04-02 | 2011-04-02 | Friction tester for dense granules |
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| CN (1) | CN102226751B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973798A (en) * | 2016-05-20 | 2016-09-28 | 西南交通大学 | Adjustable multifunctional high-speed debris flow friction test device and test method thereof |
| CN108535179A (en) * | 2018-04-27 | 2018-09-14 | 合肥工业大学 | The linear reciprocal shearing motion mechanical property testing platform of particulate matter |
| CN109357998A (en) * | 2018-11-23 | 2019-02-19 | 汽-大众汽车有限公司 | For measuring the auxiliary rack and measurement method of automatic foot-mat maximum static friction force |
| US10928286B2 (en) | 2016-02-24 | 2021-02-23 | United States Gypsum Company | System and method for evaluating joint compound specimen |
Citations (5)
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| CN2336362Y (en) * | 1997-11-18 | 1999-09-01 | 西安交通大学 | Wear state on-line monitor based on oil and power test |
| CN2521611Y (en) * | 2002-01-17 | 2002-11-20 | 浙江大学 | Dynamic sliding friction factor testing instrument |
| EP1472516B1 (en) * | 2002-02-08 | 2007-07-18 | Innowep GmbH | Method and device for determination of the wear resistance of a surface |
| CN101876625A (en) * | 2009-11-20 | 2010-11-03 | 北京理工大学 | Particle surface friction coefficient measurement device |
| CN201993306U (en) * | 2011-04-02 | 2011-09-28 | 合肥工业大学 | Friction tester of dense granule bodies |
-
2011
- 2011-04-02 CN CN2011100840509A patent/CN102226751B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2336362Y (en) * | 1997-11-18 | 1999-09-01 | 西安交通大学 | Wear state on-line monitor based on oil and power test |
| CN2521611Y (en) * | 2002-01-17 | 2002-11-20 | 浙江大学 | Dynamic sliding friction factor testing instrument |
| EP1472516B1 (en) * | 2002-02-08 | 2007-07-18 | Innowep GmbH | Method and device for determination of the wear resistance of a surface |
| CN101876625A (en) * | 2009-11-20 | 2010-11-03 | 北京理工大学 | Particle surface friction coefficient measurement device |
| CN201993306U (en) * | 2011-04-02 | 2011-09-28 | 合肥工业大学 | Friction tester of dense granule bodies |
Non-Patent Citations (2)
| Title |
|---|
| 《2011年全国青年摩擦学与表面工程学术会议论文集》 20111231 赵明灯 《密集颗粒体--机械表面摩擦测试仪研究》 157-160 1-4 , * |
| 《机械工程学报》 20041130 温诗铸 《我国摩擦学研究的现状与发展》 1-6 1-4 第40卷, 第11期 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10928286B2 (en) | 2016-02-24 | 2021-02-23 | United States Gypsum Company | System and method for evaluating joint compound specimen |
| CN105973798A (en) * | 2016-05-20 | 2016-09-28 | 西南交通大学 | Adjustable multifunctional high-speed debris flow friction test device and test method thereof |
| CN105973798B (en) * | 2016-05-20 | 2018-08-17 | 西南交通大学 | A kind of Multifunctional adjustable high speed fragment flow friction test device and its test method |
| CN108535179A (en) * | 2018-04-27 | 2018-09-14 | 合肥工业大学 | The linear reciprocal shearing motion mechanical property testing platform of particulate matter |
| CN108535179B (en) * | 2018-04-27 | 2020-06-12 | 合肥工业大学 | Mechanical property testing platform for linear reciprocating shearing motion of particulate matter |
| CN109357998A (en) * | 2018-11-23 | 2019-02-19 | 汽-大众汽车有限公司 | For measuring the auxiliary rack and measurement method of automatic foot-mat maximum static friction force |
| CN109357998B (en) * | 2018-11-23 | 2024-03-26 | 一汽-大众汽车有限公司 | Auxiliary rack for measuring maximum static friction force of automobile foot pad and measuring method |
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| Publication number | Publication date |
|---|---|
| CN102226751B (en) | 2012-11-07 |
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